The key advantages of using the SaaS (Software as a Service) model are that:

• It provides a low cost of entry to build a business case and gain executive-level buy-in.
• It allows the business to build a Project Portfolio Management (PPM) process and embed competency without being bogged down in protracted software installation cycles.
• It allows the business to work around IT resource and budget constraints.
• The vendor’s application can be tested in a proof-of-concept or pilot.
• The SaaS provider owns, operates and maintains the software application.
• The SaaS provider owns, operates and maintains the servers that run the application.
• The SaaS provider employs the people needed to maintain the application.